人教版高中英语必修三unit4 reading公开课

4. How does space exploration benefit the products that people use nowadays? High-end products around the world are made to a higher standard now because of advanced technology which was first created to meet the requirements for space exploration.
B Safety tests prove that people are less likely to be hurt if
they are wearing seat belts.Thirty-two states have passed laws requiring people to wear seat belts, which has reduced traffic-related deaths. Some people may say that seat belts are uncomfortable. I think that is a small price to pay for added safety.
Structur e the eassy
Polish the
languag e
write an argumentative essay
Step 1: Decide upon a topic （确定一个话题）
Topic： Is exploring space a waste of time and money?
write an argumentative essay

Humans produce too much carbon dioxide , making the earth too hot to live in.
The oder of life on the earth
water Plants in the water Shellfish and fish Plants on land
The disappearance of dinosaurs made possible the rise ofm__a_m_m__a_lson the earth.
Para 5 Answer question
About 2.6 million years ago
Now
After the clever animals (humans) became important on the earth, what happened?
put too much carbon dioxide into the atmosphere
make the earth too hot
As young people, what little things can we do for the earth?
prevent solar energy plant trees desertification recycle rubbish save water purify air
of the universe. ( 3) The importance of water for life.
Passage structure
Page 27
Read the passage carefully and analyze its structure:

My success encouraged me to continue. 我旳成功鼓励我继续干下去。
He encouraged me to learn dancing. 他鼓励我去学跳舞。
11. Many millions of years later the first green plants began to appear on land.
6. be harmful to 对…有害 do harm to sb. = do sb. harm 伤害某人，对某人有坏处
1) Pollution is especially harmful to animals. 2) Smoking will do you a lot of harm. It does no harm (for sb.) to do… There is no harm in (sb.’s) doing sth.
Language points Unit 4
1.It exploded loudly with fire and rock, which were in time to produce the water vapour …
1). （使某物）炸开，爆炸
2). （指感情）迸发 explode with /in/into...
explosive adj.爆炸性旳，易爆炸旳explosion n. 爆炸（声）
2. It exploded loudly with fire and rock, which were in time to produce the water vapour,….
in time: sooner or later; eventually 迟早；最终；终于 I’ll see him in time. 总有一天我会遇见他。

4 insects 5amphibians
6 forests
7 reptiles 8 dinosaurs 9 mammals
10 humans
Hangzhou Foreign Languages School Bao Xiaoming seagreatbao@
Can you put the order of development of
6
appeared.
10. The universe began with
11. Clever animals with
Stage 1: The development of the earth
(1) After the Big Bang, what was the
earth like?
a cloud of dust
a solid globe
(2) What happened next?
exploded with fire and rock
1.Who are the small clever animals with hands and feet? 2. Are they taking care of the earth well? Why?
Because they are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space.
3 人教版必修 Unit 4 Astronomy: the science of the stars
reading
How Life Began on the Earth

2 (B) a solid ball 8 (C) reptiles appear 1 (D) a cloud of dust 5 (E) shellfish and other fish appear 9 (F) dinosaurs appear (G) small plants grow on the water
What’s the sientific idea?
The big Bang is used to describe a huge explosion that scientists believe happened around 15 billion years ago ,created our universe.
B They cause global warming. C They find new methods of growing crops.
D They enjoy hunting and fishing.
Discuss: Is the earth getting warmer each year? If so, what effects will this have? What’s the “green house effect”?
Unit 4:
Astronomy: the science of the stars
Solar system: is made up of the sun and the
objects that orbit(盘绕) it. These include the nine planets and their moons（卫星）, as well as comets（彗星）, and meteors（流星）.
高考总分:711分 毕业学校:北京八中 语文139分 数学140分 英语141分 理综291分 报考高校：